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Quality of service scheme for collision-based wireless networks

  • US 9,544,922 B2
  • Filed: 09/16/2008
  • Issued: 01/10/2017
  • Est. Priority Date: 09/16/2008
  • Status: Active Grant
First Claim
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1. A method of transmitting over a channel associated with a wireless unit, the method comprising:

  • determining, by a processor, a message to be one of a first priority message or a second priority message;

    upon a determination that the message is the first priority message in a first priority message queue, determining whether the second priority message is pending in a second priority message queue to be transmitted over the channel;

    analyzing a counter indicative of a number of second priority messages in the second priority message queue to determine whether the second priority message is pending in the second priority message queue, wherein the counter is decremented upon transmission of the second priority message;

    upon a determination that the second priority message is pending in the second priority message queue based on the analyzing, suspending transmission of the first priority message, until no second priority messages are pending in the second priority message queue;

    upon a determination that no second priority messages are pending in the second priority message queue, determining whether the channel is busy;

    upon a determination that the channel is busy, waiting until the channel becomes not busy;

    upon the channel being not busy and the determination that no second priority messages are pending in the second priority message queue, suspending, for a predetermined amount of time, transmission of the first priority message; and

    upon a determination that the channel is not busy, and expiration of the predetermined amount of time, transmitting the message over the channel.

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